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/*
* Copyright © 2011 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef BRW_PROGRAM_H
#define BRW_PROGRAM_H
/**
* Sampler information needed by VS, WM, and GS program cache keys.
*/
struct brw_sampler_prog_key_data {
/**
* Per-sampler comparison functions:
*
* If comparison mode is GL_COMPARE_R_TO_TEXTURE, then this is set to one
* of GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL, GL_GREATER, GL_NOTEQUAL,
* GL_GEQUAL, or GL_ALWAYS. Otherwise (comparison mode is GL_NONE), this
* field is irrelevant so it's left as GL_NONE (0).
*
* While this is a GLenum, all possible values fit in 16-bits.
*/
uint16_t compare_funcs[BRW_MAX_TEX_UNIT];
/**
* EXT_texture_swizzle and DEPTH_TEXTURE_MODE swizzles.
*/
uint16_t swizzles[BRW_MAX_TEX_UNIT];
uint16_t gl_clamp_mask[3];
/**
* YUV conversions, needed for the GL_MESA_ycbcr extension.
*/
uint16_t yuvtex_mask;
uint16_t yuvtex_swap_mask; /**< UV swaped */
};
void brw_populate_sampler_prog_key_data(struct gl_context *ctx,
struct brw_sampler_prog_key_data *key, int i);
#endif
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